body {
  background-image: url(../picture/17.png);
  background-size: cover;
  font-size: 17px;
  font-family: "幼圆"
}

.login {
  width: 1000px;
  height: 500px;
  margin: 100px auto;
  border: 1px;
  background-color: rgba(0, 0, 0, 0.3);
  padding: 1px;
  position: relative;
  color: #fff;
}

.rightpic {
  width: 500px;
  height: 360px;
  position: absolute;
  right: 30px;
  top: 50px;
  opacity: 0.6;
}

.captcha {

  cursor: pointer
}

.text {
  font-size: 18px;
  margin-left: 180px;
  text-align: center;
  color: #f00;

}

.bottom {
  text-align: center;
  color: #fff;
}

#container {
  position: relative;
  width: 500px;
  height: 330px;
}

canvas {
  position: absolute;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -ms-backface-visibility: hidden;
}

img {
  position: absolute;
  -webkit-transition: opacity .3s;
  transition: opacity .3s;
}
